| 单词 | donkey-pump |
| 释义 | > as lemmasdonkey-pump donkey-pump n. an auxiliary steam-pump for filling the boiler of a steam-engine, or for other subsidiary operations. ΚΠ 1869 Eng. Mech. 10 Dec. 293/2 Of the means for feeding the boiler, those in general use are the injector, donkey-pump, and the force pump. < as lemmas |
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